ST STM32F4 Series User Manual

PM0214 Rev 9 253/262
PM0214 Core peripherals
261
4.6.1 Coprocessor access control register (CPACR)
Address offset (from SCB): 0x88
Reset value: 0x0000000
Required privilege: Privileged
The CPACR register specifies the access privileges for coprocessors.
4.6.2 Floating-point context control register (FPCCR)
Address offset: 0x04
Reset value: 0xC000000
Required privilege: Privileged
The FPCCR register sets or returns FPU control data.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Reserved
CP11 CP10
Reserved
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1514131211109876543210
Reserved
Bits 31:24 Reserved. Read as Zero, Write Ignore.
Bits 23:20 CPn: [2n+1:2n] for n values 10 and 11. Access privileges for coprocessor n. The possible
values of each field are:
0b00: Access denied. Any attempted access generates a NOCP UsageFault.
0b01: Privileged access only. An unprivileged access generates a NOCP fault.
0b10: Reserved. The result of any access is Unpredictable.
0b11: Full access.
Bits 19:0 Reserved. Read as Zero, Write Ignore.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
ASPEN LSPEN
Reserved
rw rw
1514131211109876543210
Reserved
MONRDY
Reserved
BFRDY
MMRDY
HFRDY
THREAD
Reserved
USER
LSPACT
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ST STM32F4 Series Specifications

General

Brand	ST
Model	STM32F4 Series
Category	Computer Hardware
Language	English